INTRODUCING AJS® 25 — 18"–24"

The information in this document pertains to use in the UNITED STATES ONLY, Allowable Stress Design. Refer to the ALLJOIST Specifier Guide Canada for use in Canada, Limit States Design.

Apr 2009 r 07/21/2011

AJS® 25 Deep Depths

Deeper AJS® 25 joists for longer spans and

heavier load conditions

US Versionproduct manufactured in

St. Jacques, New Brunswick Canada

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AJS® 25 Deep Depths Flyer - UNITED STATES 04/2009 r 07/21/2011

AJS® 25 Design Properties

Web Stiffener Requirements

One-Hour Floor/Ceiling Assembly

NOTES:● Moment, shear and reaction values based upon a load duration of 100%

and may be adjusted for other load durations.● Design values listed are applicable for Allowable Stress Design (ASD).

BUILDING CODE EVALUATION REPORT- ICC ESR 1144 (IBC, IRC)

AJS Joists in Commercial Projects: The new deeper depth AJS® 25 joists are intended for commercial projects with heavier design loads and longer spans. All commercial projects utilizing AJS® joists shall have an engineer or architect of record.

∆ = 5wl4+ wl2

384 EI K ∆ = deflection [in] w = uniform load [lb/in] l = clear span [in] EI = bending stiffness [lb-in2] K = shear deformation coefficient [lb]

Joist Series

Depth [inches]

Weight [plf]

Moment [ft-lbs]

El x 106 [lb-in2]

K x 106 [lbs]

Shear [lbs]

End Reaction [lbs] Intermediate Reaction [lbs]

1½" Bearing 3½" Bearing 3½" Bearing 5¼" Bearing

Web Stiffeners Web Stiffeners Web Stiffeners Web Stiffeners

AJS®

25

18

20

22

24

4.6 10975 1427 12.3 3010 2240 2620 4720 4720

4.9 12270 1813 13.7 3240 2490 2980 5110 5110

5.1 13455 2249 15.0 3470 2490 3150 5230 5505

5.4 14625 2737 16.5 3690 2490 3320 5345 5900

FIRE ASSEMBLY COMPONENTS

1. Min. ¾" tongue-and-groove plywood or 23/32" APA Rated Sheathing (Exposure 1 or exterior glue)

2. AJS® Joists at 24" o.c. or less.

3. Two layers ½" Type C or two layers ⅝" Type X gypsum board

4. When constructed with resilient channels, STC = 50.

American Wood Council - DCA 3Contact your local Boise Cascade representative for specific assembly information and other fire-resistive options.

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Web Stiffener Nailing Schedule

SeriesJoist

Depth Nailing

AJS® 25 18" - 24" 5-10d

Structural Panel Web Stiffener

Series Minimum Thickness

AJS® 25 2x4 lumber (vertical)

NOTES• Web stiffeners are always required for 18” and deeper AJS® joists at all bearing locations.• Web stiffeners are always required in certain roof applications. See Roof Framing Details on page 14 of

ASG US version.• Web stiffeners are always required under concentrated loads that exceed 1000 pounds. Install the web

stiffeners snug to the top flange in this situation. Follow the nailing schedule for intermediate bearings.

2" min.4" max.

Small Gap:1/8" min.,

2" max.

2" min.4" max. Tight Fit

See Web Stiffener Nailing Schedule

chart

Gap

Web Stiffenerrequired whenconcentrated loadexceeds 1000 lbs

ClinchNails

Web StiffenerWidth

Web stiffeners applied to both sides of the joist web

AJS® 25 Deep Depths Flyer - UNITED STATES 04/2009 r 07/21/2011

3AJS® 25 Floor Load Table

100% Load Duration

SpanLength

AJS® 25 Series3½" Flange Width

18" AJS® 25

20" AJS® 25

22" AJS® 25

24" AJS® 25

Live Load Total Load Live Load Total Load Live Load Total Load Live Load Total Load6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Allowable Uniform Floor Load(in pounds per lineal foot [PLF])

- 629 - 681 - 697 - 712

- 539 - 584 - 597 - 610

- 472 - 511 - 523 - 534

- 419 - 454 - 464 - 475

- 377 - 408 - 418 - 427

- 343 - 371 - 380 - 388

- 314 - 340 - 348 - 356

- 290 - 314 - 321 - 328

- 269 - 292 - 298 - 305

- 251 - 272 - 278 - 285

- 236 - 255 - 261 - 267

- 222 - 240 - 246 - 251

- 209 - 227 - 232 - 237

197 198 - 215 - 220 - 225

171 188 - 204 - 209 - 213

150 179 187 194 - 199 - 203

132 171 165 185 - 190 - 194

116 164 146 177 178 181 - 185

103 152 129 170 158 174 - 178

92 140 115 157 141 167 170 171

82 129 103 145 127 159 153 164

74 120 93 134 114 147 137 158

66 111 84 125 103 137 124 149

60 104 76 116 93 127 112 139

54 97 69 109 84 119 102 130

• Live load values based on deflection of L/480. To calculate deflection limits of L/360 and L/960, multiply the live load by 1.33 and .5, respectively.

• Total load limits joist deflection to L/240.

• Load capacity assumes the absence of composite action from sheathing.

• Values represent worst case of simple or multiple spans.

• Web stiffeners required at all bearing locations.

Boise Cascade EWP is a participant in the Sustainable Forestry Initiative® (SFI®), a comprehensive forest management program that is a combination of environmental responsibilities and sound business practices. The procurement systems of Boise Cascade’s engineered wood product facilities have been audited by PricewaterhouseCoopers to the SFI® Standard and its products will carry the SFI® Label. These procurement systems provide tracking information on Boise Cascade’s supply chain sources.

ALLJOIST, BOISE CASCADE, BCI, BC CALC, BC FRAMER , BC RIM BOARD, BOISE GLULAM, SIMPLE FRAMING SYSTEM, VERSA-LAM, TREE-IN-A-CIRCLE, VERSA-RIM, VERSA-STRAND, and VERSA-STUD are trademarks of Boise Cascade, L.L.C. or its affiliates.

Your Dealer is:

If no dealer is listed, call 1-800-232-0788Copyright © Boise Cascade, L.L.C. 2011 AJS 25 Deep Depths Flyer 04/2009 r 07/21/2011

Lifetime GuaranteedQuality and Performance

Boise Cascade warrants its BCI® Joist, VERSA-LAM®, and ALLJOIST® products to comply with our specifications, to be free from defects in material and

workmanship, and to meet or exceed our performance specifications for the normal and expected life of the structure when correctly stored, installed and

used according to our Installation Guide.

For information about Boise Cascade's engineered wood products, including sales terms and conditions, warranties and disclaimers,

visit our website at www.BCewp.com

If in doubt ask! For the closest Boise Cascade EWP distributor/support

center, call 1-800-232-0788

The information in this document pertains to use in the UNITED STATES ONLY, Allowable Stress Design. Refer to the ALLJOIST Specifier Guide Canada for use in Canada, Limit States Design.